Melanin polyvinyl alcohol plastic laminates for optical...

Details Melanin polyvinyl alcohol plastic laminates for optical... Melanin polyvinyl alcohol plastic laminates for optical...

2006-04-18

2006-04-18

Hightower, P. Hampton (Department: 1711)

Stock material or miscellaneous articles

Composite

Of polyamide

C428S411100, C359S350000, C359S355000, C523S106000, C264S001310, C264S001320, C252S582000, C252S588000, C527S201000, C527S202000, C527S203000

Reexamination Certificate

active

07029758

ABSTRACT:
The present invention relates to the use of water soluble melanin in solid plastic films of polyvinyl alcohol to be used in conjunction with other plastics to make laminated sheets or lenses. Such laminates will be used as filters to protect against photochemical damage from electromagnetic radiation.

REFERENCES:
patent: 4698374 (1987-10-01), Gallas
patent: 5036115 (1991-07-01), Gallas
patent: 5047447 (1991-09-01), Gallas
patent: 5112883 (1992-05-01), Gallas
patent: 5158718 (1992-10-01), Thakrar et al.
patent: 5187207 (1993-02-01), Gallas
“Spectroscopical properties of porphyrin-melanin in polyvinyl alcohol film”, Izabela Hanz et al, Abstract, Department of Molecular Physics, Institute of Physics., Poznan University of Technology, Piotrowo 3, 60-965 Poznan, Poland.

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